fix: change order of Union types for media properties

The order of Union types for media properties in various files was
reversed to `Union[str, InputFile]` for consistency. The changes were
made in the following files:
- aiogram/types/input_media_video.py
- aiogram/types/input_media_audio.py
- aiogram/types/input_media_document.py
- aiogram/types/input_media_animation.py
- aiogram/types/input_media_photo.py
- aiogram/utils/media_group.py

fix: update type check in base.py for TelegramObject (dev-3)

Replaced BotContextController with TelegramObject in the type check to
ensure proper handling of non-standard objects.

test: add TODO comments in test files (dev-3)

Added TODO comments to highlight parts of the code that need future
improvements in the following test files:
- tests/test_api/test_types/test_input_file.py
- tests/test_api/test_client/test_session/test

tests/test_api/test_client/test_session/test_base_session.py

@@ -122,7 +122,7 @@ class TestBaseSession:
                 ),
                 "1494994302",
             ],
-            [LinkPreviewOptions(is_disabled=True, url=None), '{"is_disabled":true}'],
+            [LinkPreviewOptions(is_disabled=True), '{"is_disabled":true}'],
             [Default("parse_mode"), "HTML"],
             [Default("protect_content"), "true"],
             [Default("link_preview_is_disabled"), "true"],

tests/test_api/test_methods/test_base.py

@@ -20,15 +20,15 @@ class TestTelegramMethodRemoveUnset:
     )
     @pytest.mark.parametrize("obj", [TelegramMethod, TelegramObject])
     def test_remove_unset(self, values, names, obj):
-        validated = obj.remove_unset(values)
+        validated = obj.remove_unset.wrapped(values)
         assert set(validated.keys()) == names
 
     @pytest.mark.parametrize("obj", [TelegramMethod, TelegramObject])
     def test_remove_unset_non_dict(self, obj):
-        assert obj.remove_unset("") == ""
+        assert obj.remove_unset.wrapped("") == ""
 
 
-class TestTelegramMethodJsonSerialize:
+class TestTelegramMethodModelDumpJson:
     @pytest.mark.parametrize(
         "obj",
         [
@@ -39,7 +39,7 @@ class TestTelegramMethodJsonSerialize:
             LinkPreviewOptions(),
         ],
     )
-    def test_json_serialize(self, obj):
+    def test_model_dump_json(self, obj):
         def has_defaults(dump: Dict[str, Any]) -> bool:
             return any(isinstance(value, Default) for value in dump.values())
 

tests/test_api/test_types/test_input_file.py

@@ -99,3 +99,5 @@ class TestInputFile:
                 assert chunk_size == 1
                 size += chunk_size
             assert size == 10
+
+    # TODO: used_valid_bot